Palatal expansion appliance



FIG. 1 is a top perspective view of a first embodiment of a palatal expansion appliance in accordance with my new design.

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top perspective view of a second embodiment of the palatal expansion appliance in accordance with my new design.

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a left side view thereof;

FIG. 12 is a right side view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof. 

CLAIM The ornamental design for a palatal expansion appliance, as shown and described. 